ELRF™ Professional

ELRF™ Professional is for actuaries requiring deterministic or stochastic link ratio techniques coupled with the power of a relational database.

The following link ratio modeling frameworks are included (over 144 methods):

Extended Link Ratio Family (ELRF);

Link Ratio Techniques (LRT);

Payment Per Claim Incurred (PPCI);

Projected Case Estimates (PCE);

Fisher-Lange (FL); and

Bornhuetter-Ferguson and Expected Loss Ratio methods

Fully featured relational databases form a repository for all your data and models.

A COM API is available to import/export data.

Extended Link Ratio Family (ELRF) modeling framework

The Extended Link Ratio Family (ELRF) modeling framework formulates average link ratio methods as regression estimators and extends them. This includes Mack (volume weighted averages), other weighted averages and extensions:

Murphy (an intercept)

A constant trend in the incrementals for each development period down the accident years

Optimal combinations of intercepts, trends, and link ratios

Control over variance assumptions (delta)

Standard deviations are computed analytically in all cases.

The bootstrap technique

The Bootstrap technique in the ELRF module gives

Distributions of reserves by accident years, calendar years, and total

Percentiles, V@Rs and T-V@Rs

… and more!

Distributions can be translated from the bootstrap sample mean to any mean specified by the user by accident period totals or calendar period totals. This allows the actuarial analyst to fit any link ratio model, obtain the means by accident (or calendar) period and apply the bootstrap using the Mack method residuals with a selected delta.